Refrigerated container

Abstract

The invention discloses a refrigerated container, and belongs to the technical field of refrigerated containers. The refrigerated container comprises a container body; the refrigerating unit is arranged on the outer side of one end of the box body, an air outlet of the refrigerating unit is formed in the lower portion of an inner cavity of the box body, and an air return opening of the refrigerating unit is formed in the upper portion of the inner cavity of the box body; the circulating floor is arranged in the box body, a circulating flow channel arranged in the length direction of the box body is formed in the circulating floor, the circulating flow channel is communicated with the air outlet, an air exhaust hole is formed in the circulating floor, and the air exhaust hole is communicated with an inner cavity of the box body and the circulating flow channel. The refrigerated container provided by the invention has the complete storage capacity of a standard container and good air-cooling circulating refrigeration performance.

Description

Technical Field

[0001] The present application belongs to the technical field of containers, and in particular relates to a refrigerated container. Background Art

[0002] Refrigerated containers are important transport carriers for large-volume, long-distance cold chain transportation. They have good thermal insulation and low-temperature retention properties and are suitable for the storage and transportation of various perishable foods. Usually, refrigerated containers include a container, a refrigeration unit, a fuel system, and an electrical system, and a space is separated in the container to install the refrigeration unit, the fuel system, and the electrical system.

[0003] However, part of the internal space of the refrigerated container is occupied by functional equipment such as the refrigeration system, which reduces the available loading space of the refrigerated container and leads to unsatisfactory carrying capacity. At the same time, in some containers equipped with an air-cooled base, the container is relatively long. After loading the goods, the air-cooling circulation is not smooth, which easily leads to unsatisfactory refrigeration effect. Summary of the invention

[0004] The present application provides a refrigerated container, which aims to at least to some extent solve the technical problems of small storage space, poor air cooling circulation and unsatisfactory refrigeration effect of refrigerated containers.

[0005] In one aspect of an embodiment of the present application, a refrigerated container is provided, comprising:

[0006] Box;

[0007] A refrigeration unit is arranged outside one end of the box, and the air outlet of the refrigeration unit is arranged at the lower part of the inner cavity of the box, and the air return port of the refrigeration unit is arranged at the upper part of the inner cavity of the box;

[0008] A circulation floor is arranged in the box body, and a circulation flow channel is opened on the circulation floor and arranged along the length direction of the box body. The circulation flow channel is connected to the air outlet, and exhaust holes are opened on the circulation floor, and the exhaust holes are connected to the inner cavity of the box body and the circulation flow channel.

[0009] In some embodiments, the box includes: a bottom frame, a front frame, a rear frame, a top plate, side walls, and a rear door;

[0010] The front frame and the rear frame are respectively arranged at two ends of the base frame in the length direction, and the refrigeration unit is externally mounted on the front frame, and the circulation floor is arranged on the base frame;

[0011] The top plate is arranged between the front end frame and the rear end frame, and the top plate is opposite to the bottom frame, and two ends of the top plate are respectively connected to the front end frame and the rear end frame;

[0012] The sides of the side walls are respectively connected to the base frame, the front frame, the rear frame and the top plate;

[0013] The rear door is arranged on the rear end frame.

[0014] In some embodiments, the refrigerated container further comprises a protection frame, wherein the protection frame is connected to the front end frame, and a protection space is provided between the protection frame and the front end frame, and the refrigeration unit is located in the protection space.

[0015] In some embodiments, the refrigerated container further comprises an extended bracket connected to an end of the base frame, and the extended bracket is supported at a lower portion of the refrigeration unit.

[0016] In some embodiments, a vacuum insulation panel is provided inside the box of the top plate.

[0017] In some embodiments, the air outlet of the refrigeration unit is provided with an air guide channel, and the air guide channel includes:

[0018] A transfer air duct connected to the air outlet of the refrigeration unit;

[0019] A flexible air guide has a first end connected to the air outlet of the transfer air duct and a second end that can be slidably abutted against the end of the circulation floor, and the flexible air guide connects and connects the transfer air duct and the circulation flow channel.

[0020] In some embodiments, an expanded diameter connecting section is provided on the air inlet side of the transfer air duct, and a small diameter end of the expanded diameter connecting section is connected to the air outlet of the refrigeration unit.

[0021] In some embodiments, the first end of the flexible air guide is connected to the air outlet of the transfer air duct through an elastic hinge.

[0022] In some embodiments, the switching air duct is a box-shaped member, and a guide rib plate is provided in the switching air duct, and the guide rib plate is arranged along the direction of the line connecting the air inlet and the air outlet.

[0023] In some embodiments, the outer surface of the box is coated with a heat reflective coating.

[0024] The embodiments of the present application have at least the following beneficial effects:

[0025] The refrigerated container provided in the embodiment of the present application includes a box body, a refrigeration unit and a circulation floor. The refrigeration unit is externally arranged at one end side of the box body in the length direction and does not occupy the storage space in the box body, thereby maximizing the utilization rate of the storage space in the box body and improving the loading capacity of the refrigerated container; and a circulation floor equipped with a circulation flow channel is arranged in the box body, the circulation flow channel is connected with the air outlet of the refrigeration base, the return air outlet of the refrigeration unit is arranged above the inner cavity of the box body, and exhaust holes are also arranged on the circulation floor to connect the circulation flow channel and the internal space of the box body, thereby forming a refrigeration air circulation structure extending along the length direction of the box body from bottom to top, and taking into account the function of uniform and smooth exhaust over a large range, thereby ensuring to a certain extent that the entire internal space of the box can obtain stable circulating cold air, thereby improving the refrigeration effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 A schematic diagram of the structure of a refrigerated container in an embodiment of the present application is shown;

[0028] Figure 2 Shows Figure 1 Schematic diagram of the internal layout of a refrigerated container;

[0029] Figure 3 Shows Figure 2 A schematic diagram of the coordination of the refrigeration unit and the transfer flow channel in the refrigerated container;

[0030] Figure 4 Shows Figure 3 A schematic diagram of the connection between the transfer flow channel and the flexible air guide member;

[0031] Figure 5 Shows Figure 3 Schematic diagram of the connection between the flexible air guide and the circulation floor;

[0032] Figure 6 Shows Figure 3 A partial enlarged schematic diagram of the circulation floor in FIG.

[0033] Figure 7 Shows Figure 3 An enlarged view of the interior of the transfer channel in FIG.

[0034] Reference numerals:

[0035] 1-box, 11-bottom frame, 12-front frame, 121-protection frame, 122-protection space, 123-extension bracket, 13-rear frame, 14-top plate, 15-side wall, 16-rear door, 17-restraint space;

[0036] 2-refrigeration unit, 21-air outlet, 22-return air outlet;

[0037] 3-circulation floor, 31-circulation flow channel, 311-exhaust hole, 32-air guide vertical plate, 321-vertical plate, 322-horizontal plate, 33-bottom plate;

[0038] 4-wind guide channel, 41-transfer air channel, 411-guide rib plate, 412 small width section, 413-large width section, 414-expanded connecting section, 414a-guide inclined panel, 42-flexible wind guide member, 421-elastic wind guide plate, 421a-vertical part, 421b-lateral part, 421c-rubber hinge. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0040] In addition, the present application may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplicity and clarity, and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present application provides various specific examples of processes and materials, but those of ordinary skill in the art may recognize the application of other processes and / or the use of other materials.

[0041] The present application is described below with reference to the accompanying drawings and specific embodiments:

[0042] In a refrigerated container, it is usually necessary to separate an independent equipment chamber in the inner cavity to accommodate and install various functional equipment components such as refrigeration units, which reduces the loading space in the container. At the same time, the container with air cooling circulation itself has a certain length, and the refrigeration unit is set at one end of the box body, which leads to the worse air cooling circulation effect the farther away from the refrigeration unit, which seriously affects the refrigeration effect.

[0043] To this end, an embodiment of the present application provides a refrigerated container, which aims to solve the problem of unsatisfactory loading performance and refrigeration effect of the refrigerated container to a certain extent, achieve the technical effect of improving the circulating air cooling effect and uniformity, and take into account the improvement of loading capacity.

[0044] See also Figure 1 , Figure 2 , Figure 3 and Figure 5 In some embodiments, the refrigerated container adopts an external equipment mode to ensure the integrity of the internal space of the container body, thereby improving the loading capacity; and through the design of the air cooling path, the circulating cold air in the container is stably delivered to various areas of the box body to improve the refrigeration effect.

[0045] The refrigerated container may include a box body 1, a refrigeration unit 2 and a circulation floor 3. The refrigeration unit 2 is hung on the outside of one end of the box body 1 in the length direction through a connecting structure and does not occupy the internal space of the box body; the circulation floor 3 is arranged at the inner bottom of the box body 1 as a bearing structure.

[0046] The box body 1 may be a typical container box structure, and the box body has a storage space inside for loading goods. Generally speaking, the box body 1 may be set as a standard container of various specifications, and its length, width and height are of standard specifications, and its internal storage space is a space of standard specifications, and the equipment cavity is not separated, but an integrated storage chamber.

[0047] The refrigeration unit 2 is a device with a refrigeration function and is an air-cooling device, equipped with an air outlet and a return air outlet. The refrigeration unit 2 is arranged outside the end of the box body 1 in the length direction, so as not to occupy storage space; and the air outlet 21 and the return air outlet 22 of the refrigeration unit 2 are respectively connected to the inner cavity of the box body 1, so as to construct a circulating air cooling path. Generally speaking, the air outlet 21 can be connected to the lower area of ​​the inner cavity of the box body 1, and the return air outlet 22 can be connected to the upper area of ​​the inner cavity of the box body 1, so as to realize the lower air outlet and upper air return mode in the box body 1, so that the cold air can absorb heat and expand upward, and then converge to the return air outlet 22.

[0048] The circulation floor 3 is laid on the bottom plate inside the box 1, covers the entire bottom area of ​​the box 1, and serves as a floor for carrying goods. The circulation floor 3 is provided with a circulation channel 31 extending along the length direction, and an exhaust hole 311 is provided on the circulation floor 3, which is used to connect the inner cavity of the box 1 and the circulation channel 31, and one end of the circulation channel 31 is connected with the air outlet 21, so that the circulating cold air is discharged from the air outlet 21 and transported along the length direction through the circulation channel 31, and during the transportation process, it passes into the inner cavity of the box 1 through the exhaust hole 311, and evenly covers the inside of the box 1, so as to ensure the uniformity of the cooling air beam and improve the cooling effect.

[0049] In some embodiments, the box body 1 may include a bottom frame 11 , a front frame 12 , a rear frame 13 , a top plate 14 , side walls 15 , and a rear door 16 .

[0050] The base frame 11 can be configured as a substantially planar frame as a basic load-bearing structure. Generally speaking, the base frame 11 is rectangular in shape as a whole.

[0051] The front frame 12 and the rear frame 13 are respectively connected to the two ends of the bottom frame 11 in the length direction to form a support frame for supporting the top and side structures of the box body 1. Generally speaking, the front frame 12 and the rear frame 13 can be fixed on the top surface of the end of the bottom frame 11, and the front frame 12 and the rear frame 13 are flush with the end surface of the bottom frame 11.

[0052] The top plate 14 is the top surface structure of the box body 1, and is fixed by the front end frame 12 and the rear end frame 13; for this purpose, the top plate 14 can be arranged between the front end frame 12 and the rear end frame 13, and the top plate 14 is opposite to the base frame 11, and the two ends of the top plate 14 are respectively connected to the front end frame 12 and the rear end frame 13.

[0053] The side wall 15 constitutes the circumferential side wall structure of the box body 1, and the sides of the side wall 15 are respectively connected to the bottom frame 11, the front frame 12, the rear frame 13 and the top plate 14, so as to constitute the main structure of the box body 1, and the inside of the box body 1 has a cavity for accommodating goods. The side wall 15 has two sides, which are respectively located on both sides of the width direction of the bottom frame 11; generally speaking, the side wall 15 can also be set on both sides of the length direction of the bottom frame 11.

[0054] The rear door 16 may be correspondingly disposed on the rear end frame 13 to serve as an opening and closing mechanism of the box body 1 .

[0055] Correspondingly, the refrigeration unit 2 can be hung on the outside of the front end frame 12, that is, protruding from the area of ​​the base frame 11, and does not occupy the space above the base frame 11, thereby ensuring the integrity of the internal storage space of the box body 1. Compared with refrigerated containers of the same specifications and separated from the refrigeration equipment cavity, it has a higher cargo capacity.

[0056] In some embodiments, considering that the refrigeration unit 2 is fixed externally, in order to enhance the fixing stability of the refrigeration unit 2, a protective frame 121 can be provided on the front end frame 12 to form a protective space 122, and the refrigeration unit 2 can be correspondingly arranged in the protective space 122.

[0057] That is, the refrigeration unit 2 is fixed to the outside of the front frame 12 by fasteners, and the protective frame 121 is arranged around the refrigeration unit 2 to prevent external debris from impacting the refrigeration unit 2 and also to restrain the refrigeration unit 2 to reduce the risk of falling.

[0058] In some embodiments, in order to further enhance the external stability of the refrigeration unit 2, an extended bracket 123 may be provided at the end area of ​​the base frame 11 to support the refrigeration unit 2. Generally speaking, the extended bracket 123 may be provided below the refrigeration unit 2 to support the lower part of the refrigeration unit 2.

[0059] In some embodiments, the circulation floor 3 may include a plurality of air guide vertical plates 32 and a bottom plate 33 arranged at intervals, and the plurality of blade vertical plates 31 may be extended along the length direction of the box body 1 and arranged on the bottom plate 33, and the circulation flow channel 31 is formed between two adjacent air guide vertical plates 32.

[0060] See also Figure 6 In some embodiments, in order to ensure that the refrigeration air beam circulates to the end of the box 1 away from the refrigeration unit 2, it is necessary to limit the size of the top opening of the circulation channel 31 to avoid excessive opening that affects the long-distance circulation of the air beam.

[0061] Generally speaking, the air guide vertical plate 32 may include a vertical plate 321 and a horizontal plate 322 that are vertically arranged, that is, the air guide vertical plate 32 may be arranged as a T-shaped vertical plate; the vertical plate 321 is vertically arranged on the bottom plate 33, and the horizontal plate 322 is arranged on the top of the vertical plate 321, so that a plurality of the vertical plates 321 arranged at intervals cooperate with the horizontal plates 322 arranged at intervals to form a plurality of semi-closed flow channel structures, and the gap between two adjacent horizontal plates 322 constitutes the exhaust hole 311.

[0062] In some embodiments, in order to connect the air outlet 21 of the refrigeration unit 2 with the circulation channel 31, an air guide channel 4 can be set at the air outlet 21 of the refrigeration unit 2, and the air guide channel 4 is connected with the circulation floor 3, and the air outlet 21 is connected with the circulation channel 31 through the air guide channel 4, so that the cooling air beam output from the air outlet 21 flows into the circulation channel 31 through the air guide channel 4, and further enters the inner cavity of the box body 1 through the exhaust hole 311.

[0063] In some embodiments, considering the specifications of the air outlet 21 of the refrigeration unit 2 relative to the width specifications of the box body 1, in order to match the air outlet 21 and the circulation floor 3, the air guide duct 4 may include a switching air duct 41 and a flexible air guide 42.

[0064] The switching air duct 41 is used to match and connect the air outlets 21 and the circulation floor 3 of different widths. The air inlet at one end of the switching air duct 41 is equivalent to the specifications of the air outlet 21, and is connected to the air outlet 21 of the refrigeration unit 2 to receive the air beam output by the air outlet 21 of the refrigeration unit 2; the outlet width of the switching air duct 41 is equivalent to the width of the circulation floor 3.

[0065] The flexible air guide 42 can be connected between the air outlet of the switching air duct 41 and the circulation flow channel 31 of the circulation floor 3 to connect the switching air duct 41 with the circulation flow channel 31. Since the switching air duct 41 and the circulation floor 3 are both structures with fixed shapes and positions, in order to stably connect the switching air duct 41 and the circulation floor 3 and connect their internal flow channels, the flexible air guide 42 is a deformable flexible member that can naturally adapt to the shapes and positions of the switching air duct 41 and the circulation floor 3.

[0066] In some embodiments, the transfer air duct 41 may be an expanded diameter cylindrical member, and the large width end of the transfer air duct 41 extends to the floor area of ​​the box body 1, opposite to the end of the circulation floor 3, and the flexible air guide member 42 is connected to the large width end of the transfer air duct 41 and the end of the circulation floor 3.

[0067] Generally speaking, the switching air duct 41 can be set as a rectangular box, and can be vertically arranged at the front end of the box 1, and the three side walls of the box 1 can be connected with the three corresponding side walls of the switching air duct 41 to enclose a restrained space 17, so that the cooling air beam enters the box 1 through the switching air duct 41. The flexible air guide 42 is set as an elastic air guide plate 421, and the elastic air guide plate 421 is connected to the other side of the switching air duct 41 that is not connected with the side wall of the box 1, and one end of the elastic air guide plate 421 is movably abutted against the top surface of the circulation floor 3, so that the restrained space 17 is connected to the circulation flow channel 31.

[0068] It is worth noting that the elastic air guide plate 421 can be arranged close to the two inner walls in the width direction of the box body 1, and the constraint space 17 also has a certain sealing performance, so that the cooling air beam can be kept stably entering the circulation air duct 31. In addition, when the elastic air guide plate 421 is impacted by an external body such as goods, it can avoid the impact by deforming into the constraint space 17 and reset after the impact, thereby maintaining the stability and reliability of the functional form of the air guide structure.

[0069] See also Figure 4In some embodiments, the elastic air guide plate 421 can be set to a curved shape, divided into a connected vertical portion 421a and a horizontal portion 421b, the vertical portion 421a is connected to the air outlet of the transfer air duct 41, and the plate surface of the horizontal portion 421b can be movably overlapped on the top surface of the circulation floor 3, so that even when the elastic air guide plate 421 is deformed and moved, the closed shape of the constrained space can still be guaranteed to ensure the reliability of the air guide.

[0070] In some embodiments, the vertical portion 421a may be connected to the air outlet of the transfer air duct 41 via a rubber hinge 421c, thereby increasing the swing amplitude of the flexible air guide 42 to expand the impact response capability to a main body such as a cargo forklift.

[0071] Typically, the connecting area between the vertical portion 421 a and the horizontal portion 421 b is in an arc shape, so that the elastic air guide plate 42 can be integrally formed.

[0072] Generally speaking, the transverse portion 421b can be overlapped on the bottom plate 33, and the end of the transverse portion 421b can be pressed against the end of the wind guide vertical plate 32 to prevent the wind guide vertical plate 32 from losing its position, resulting in air leakage at the connection between the transverse portion 421b and the circulation floor 3.

[0073] In some embodiments, the elastic air guide plate 421 may be made of non-metallic material.

[0074] See also Figure 7 In some embodiments, a guide rib 411 may be provided in the transfer air duct 41 to ensure the overall structural strength.

[0075] Generally speaking, the guide ribs 411 can be arranged along the inner air flow direction of the switching air duct 41, that is, in the direction of the line connecting the air inlet and the air outlet of the switching air duct 41, which can play a guiding role to a certain extent.

[0076] Taking into account the different widths of the air inlet side and the air outlet side of the transition air duct 421, the expanded diameter cylindrical member of the transition air duct 41 can be divided into three sections, namely a small width section 412 and a large width section 413 located at both ends, and an expanded diameter connecting section 414 in the middle position. The expanded diameter connecting section 414 adopts a guiding inclined panel 414a to connect the side walls of the small width section 412 and the large width section 413.

[0077] That is to say, the transfer air duct 421 can be set as a box-tube type part with consistent thickness but inconsistent width, and can be divided into the small width section 412, the expanded diameter connecting section 414 and the large width section 413 in the width direction, wherein the width side wall of the expanded diameter connecting section 414 is set as a guide inclined panel 414a.

[0078] In some embodiments, in order to further increase the storage space of the box body 1, a vacuum insulation panel can be arranged on the inner side of the top plate 14, so as to enhance the thermal insulation capacity and reduce the thickness of the top plate 14 to a certain extent, so that the height inside the box can be increased to a certain extent while the overall height of the box body remains unchanged.

[0079] In some embodiments, a heat reflective coating may be applied to the outside of the box body 1 to enhance the thermal insulation capability as a whole.

[0080] In some embodiments, the refrigeration unit 2 is a typical air-cooled unit, which can be provided with a power connector to connect to an external power source, or a generator set can be configured to realize on-site power generation and supply by configuring an oil tank.

[0081] The embodiments of the present application have at least the following beneficial effects:

[0082] The refrigerated container provided in the embodiment of the present application includes a box body, a refrigeration unit and a circulation floor. The refrigeration unit is externally arranged at one end side of the box body in the length direction and does not occupy the storage space in the box body, thereby maximizing the utilization rate of the storage space in the box body and improving the loading capacity of the refrigerated container; and a circulation floor equipped with a circulation flow channel is arranged in the box body, the circulation flow channel is connected with the air outlet of the refrigeration base, the return air outlet of the refrigeration unit is arranged above the inner cavity of the box body, and exhaust holes are also arranged on the circulation floor to connect the circulation flow channel and the internal space of the box body, thereby forming a refrigeration air circulation structure extending along the length direction of the box body from bottom to top, and taking into account the function of uniform and smooth exhaust over a large range, thereby ensuring to a certain extent that the entire internal space of the box can obtain stable circulating cold air, thereby improving the refrigeration effect.

[0083] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0084] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise" and "counterclockwise" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0085] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0086] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0087] In addition, the descriptions of "first", "second", etc. in this application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0088] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification.

[0089] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0090] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A refrigerated container, characterized in that: include: Box; A refrigeration unit is arranged outside one end of the box, and the air outlet of the refrigeration unit is arranged at the lower part of the inner cavity of the box, and the air return port of the refrigeration unit is arranged at the upper part of the inner cavity of the box; A circulation floor is arranged in the box body, and a circulation flow channel is opened on the circulation floor and arranged along the length direction of the box body. The circulation flow channel is connected to the air outlet, and exhaust holes are opened on the circulation floor, and the exhaust holes are connected to the inner cavity of the box body and the circulation flow channel.

2. The refrigerated container according to claim 1, characterized in that: The box body comprises: a bottom frame, a front frame, a rear frame, a top plate, side walls and a rear door; The front frame and the rear frame are respectively arranged at two ends of the base frame in the length direction, and the refrigeration unit is externally mounted on the front frame, and the circulation floor is arranged on the base frame; The top plate is arranged between the front end frame and the rear end frame, and the top plate is opposite to the bottom frame, and two ends of the top plate are respectively connected to the front end frame and the rear end frame; The sides of the side walls are respectively connected to the base frame, the front frame, the rear frame and the top plate; The rear door is arranged on the rear end frame.

3. The refrigerated container according to claim 2, characterized in that: The refrigerated container further comprises a protection frame, wherein the protection frame is connected to the front frame, and a protection space is provided between the protection frame and the front frame, and the refrigeration unit is located in the protection space.

4. The refrigerated container according to claim 2, characterized in that: The refrigerated container further comprises an extended bracket connected to an end of the base frame and supported at a lower portion of the refrigeration unit.

5. The refrigerated container according to claim 2, characterized in that: A vacuum insulation panel is arranged inside the box of the top plate.

6. The refrigerated container according to claim 1, characterized in that: The air outlet of the refrigeration unit is provided with an air guide channel, and the air guide channel includes: A transfer air duct connected to the air outlet of the refrigeration unit; A flexible air guide has a first end connected to the air outlet of the transfer air duct and a second end that can be slidably abutted against the end of the circulation floor, and the flexible air guide connects and connects the transfer air duct and the circulation flow channel.

7. The refrigerated container according to claim 6, characterized in that: An expanded diameter connecting section is provided on the air inlet side of the transfer air duct, and a small diameter end of the expanded diameter connecting section is connected to the air outlet of the refrigeration unit.

8. The refrigerated container according to claim 6, characterized in that: The first end of the flexible air guide is connected to the air outlet of the transfer air duct through an elastic hinge.

9. The refrigerated container according to claim 6, characterized in that: The switching air duct is a box-shaped member, and a guide rib plate is arranged in the switching air duct, and the guide rib plate is arranged along the connecting line direction of the air inlet and the air outlet.

10. The refrigerated container according to any one of claims 1 to 9, characterized in that: The box body is coated with a heat reflective coating.

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